{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T02:05:22Z","timestamp":1792807522360,"version":"4.5.0"},"reference-count":16,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T00:00:00Z","timestamp":1759881600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T00:00:00Z","timestamp":1759881600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Am J Rhinol&amp;#65533;Allergy"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Sinonasal pathology, such as chronic inflammatory disease or neoplasm, can cause secondary nasolacrimal duct obstruction (sNLDO). There is a paucity of data on dacryocystorhinostomy (DCR) techniques and outcomes for NLDO secondary to known sinonasal pathologies.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To describe case characteristics, management, and surgical outcomes of sNLDO at a tertiary academic center.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Charts of DCR cases with at least 3 months follow-up done at a single institution over a 5-year period (2018-2022) were reviewed. Patient and surgical characteristics were recorded and compared between secondary and primary NLDO groups. The primary outcome was early functional success of DCR, assessed by improvement or resolution of epiphora at 3 months.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 236 cases were included. Of those, 79 (33.5%) were classified as secondary NLDO associated with sinonasal pathology. Reasons for sNLDO were sinonasal cancer (46.8%), chronic inflammatory disease (24.1%), trauma (16.5%), or prior head and neck radiation (31.6%). When comparing primary acquired NLDO to sNLDO cases, DCR for sNLDO was more likely to be performed endoscopically (68.4% vs 31.8%,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&lt;\u2009.01), by a multidisciplinary team of rhinologist and oculoplastic surgeon (70.9% vs 8.3%,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&lt;\u2009.01), and required bilateral surgery (36.7% vs 5.7%,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&lt;\u2009.01). The overall functional success rate was 79.7% for sNLDO compared to 87.9% for primary acquired NLDO (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&lt;\u2009.01). Revision surgery for sNLDO, history of sinonasal malignancy, and radiation were associated with lower functional success rates (66.7%, 70.3%, and 68.0%, respectively). Canalicular pathology was more common in sNLDO cases (29.0% vs 8.3%,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&lt;\u2009.01).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Secondary NLDO was more commonly managed with an endoscopic approach by a multidisciplinary team. Revisions for sNLDO, as well as cases with a history of sinonasal malignancy and radiation, had a markedly lower success rate, and sNLDO was frequently associated with canalicular obstruction. These findings may facilitate surgical planning and patient counseling.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/19458924251386210","type":"journal-article","created":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T17:29:31Z","timestamp":1759944571000},"page":"112-117","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Practice Patterns and Outcomes of Dacryocystorhinostomy for Secondary Nasolacrimal Duct Obstruction"],"prefix":"10.1177","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-5612-5503","authenticated-orcid":false,"given":"Lily C.","family":"Farrell","sequence":"first","affiliation":[{"name":"University College Dublin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr K.","family":"Kopinski","sequence":"additional","affiliation":[{"name":"Mayo Clinic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamad Rani","family":"Hassoun","sequence":"additional","affiliation":[{"name":"Mayo Clinic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeffrey P.","family":"Graves","sequence":"additional","affiliation":[{"name":"Mayo Clinic Alix School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1402-7461","authenticated-orcid":false,"given":"Janalee K.","family":"Stokken","sequence":"additional","affiliation":[{"name":"Mayo Clinic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea A.","family":"Tooley","sequence":"additional","affiliation":[{"name":"Mayo Clinic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elizabeth A.","family":"Bradley","sequence":"additional","affiliation":[{"name":"Mayo Clinic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lilly H.","family":"Wagner","sequence":"additional","affiliation":[{"name":"Mayo Clinic"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,10,8]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1097\/00002341-199212000-00001"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00417-023-06089-y"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.3109\/01676831003669961"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-024-09043-8"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1442-9071.2012.02844.x"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1177\/1945892418815044"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/IOP.0000000000000841"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-013-2706-7"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1097\/IOP.0b013e31824c11df"},{"key":"e_1_3_2_11_2","volume-title":"Dacryocystorhinostomy.","author":"Ullrich K","year":"2023","unstructured":"Ullrich K, Malhotra R, Patel BC. Dacryocystorhinostomy. StatPearls Publishing; 2023."},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2005.03.015"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.4103\/meajo.meajo_238_21"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.3109\/01676830.2013.788670"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.2500\/ajr.2006.20.2944"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2023.06.024"},{"key":"e_1_3_2_17_2","first-page":"1","article-title":"Radiation-induced acquired lacrimal drainage obstructions: management and outcomes","volume":"14","author":"Bothra N","year":"2024","unstructured":"Bothra N, Lin LY, Yoon MK. Radiation-induced acquired lacrimal drainage obstructions: management and outcomes. Semin Ophthalmol. 2024;14:1-5.","journal-title":"Semin Ophthalmol"}],"container-title":["American Journal of Rhinology &amp; Allergy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19458924251386210","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/19458924251386210","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19458924251386210","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:36:25Z","timestamp":1777368985000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/19458924251386210"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,10,8]]},"references-count":16,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,3]]}},"alternative-id":["10.1177\/19458924251386210"],"URL":"https:\/\/doi.org\/10.1177\/19458924251386210","relation":{},"ISSN":["1945-8924","1945-8932"],"issn-type":[{"value":"1945-8924","type":"print"},{"value":"1945-8932","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,10,8]]}}}